Shaping-tool.



No: 813,784. PATENTED PEB. 27, 1906.

o'. PIGHTNER.

SHAPING TOOL.

APPLIOATION FILED JUNE 1u, 1906.

arz'czfzer;

attoznugs,

UNITED sTATEs PATENT OFFICE.

SHAFING-TOOL.

Specification of Letters Patent.

Patented Feb. 27, 190,6.

Application filed June lO, 1905. Serial No. 264,717.

To all whom it may concern:

Be it known that I, CONRAD FICHTNER, a citizen of the United States, residing at Goodrich, in the county of McLean and State of North Dakota, have invented certain new and useful Improvements in Shaping-Tools, of which the following is a s eciiication.

This invention consists o a simple tool for use in the operation of shaping or reshaping plowshares either in the original manufacture thereof or after the share has gotten out of shape through hard service or otherwise.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for eifecting the result reference is to be had to the following description and accompanying drawings, in which- Figure 1 is a perspective view of a device embodying the invention applied. Fig. 2 is a top plan view of the tool. Fig. 3 is a transversesection on the line X X of Fig. 2. Fig. 4 is a detail perspective view of one of the clamp-levers.

Corresponding and like parts are referred to in the followin description and indicated in all the views o the drawings by the same reference characters.

Specifically describing the tool which comprises this invention, 'the numeral 1 designates a holder adapted to receive the upper portion of the plowshare,'(indicated at 2,) and said holder comprises the spaced members 1a and 1b, preferably consisting of longitudinal bars arranged in approximately parallel relation. The bars 1St and 1b of the holder 1 are connected at the ends, and said bars are also connected at points between the ends thereof bymeans of transverse connecting members 3. The members 3 are preferably of somewhat U form and have the 4sides thereof riveted or otherwise substantially secured to the bars 1*'1L and 1b at the outer sides of the latter. At one end of the holder 1 the bars la and 1b thereof are extended laterally to form a looped-shaped extension 4, so that the holder will snugly receive the upper portion of the share in an obvious manner. Mounted upon the members 3, which connect with spaced members of the holder 1 and arranged longitudinally of the holder between said spaced members, is a transversely-movable clamp bar 5, said bar being formed with openings 6 in the upper portion thereof, through which pass the members 3 above mentioned. The clamp member 5 is transversely movable, so that it may be forced toward the bar 1lD of the holder 1 to positively engage the upper portion of the share when the tool is operably mounted thereon.

Novel actuating means is used for effecting clamping action of the clamp-bar 5, and said means includes, primarily, a plurality of levers 6a, 6b, 6C, and 6d, having cams 7 at the lower ends adapted to engage the clamp-bar 5, so as to actuate the same. The lower ends of the levers aforesaid are bifurcated, preferably, one of the bifurcated portions being extended or curved from the other to form the cam members 7, which are adapted to operate between the bar 1"L of the holder 1 and the clamp-bar 5, said cams 7 being deflected laterally from a plane including the body of the levers, so that they may be forced into the space between Ithe members 1a and 5, Aabove described. The bifurcated portions of the levers adjacent the cams 7, which bifurcated portions are indicated at 8, have pivotal connection at the lower extremities thereof, as shown at 9, with the bar 1a of the holder, the pivot being upon the outer side of said bar or member 1,

It will be understood that any number of the levers above mentioned may be used within the contemplation of the invention, and the cams 7 taper to a point at the lower ends thereof, being reduced transversely toward these extremities in order that these members will have the necessary cam action when the levers are operated to force the cams toward the clamp member 5 and the bar la. The end levers 6a and 6d are preferably longer than the intermediate levers 6b and 6C.

In the actual use of the invention the share 2 is iirst heated and the tool or device hereinbefore described is then applied, so that the upper portion of the share is received between the sides of the spaced members of the holder 1. The lever 6a is then forced downwardly, then in succession the levers 6b, 6C, and 6d are operated in the same manner, the cams 7 being forced between the clamp-bar 5 to iirmly engage with the share in a manner which will be apparent. The operator n'ow takes a hammer or suitable tool and straightens out the share, after which the same is placed in cold water for hardening, and when hardened the tool may be removed. A stool or support 10 is illustrated in the drawings as means for supporting the share when the tool or device forming this invention is applied, so as to prevent the share from falling. It

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will be noted that the invention is very simple in its operation and embodies advantan geous features which will be clear to those versed in the art to which the same appertains.

I'Iaving thus described the invention, what is claimed as new isl. In a tool of the class described, the coinbination of a holder embodying spaced longitudinal bars, members connecting said bars, a clamp member arranged between the longitudinal bars of the holder and mounted upon the members connecting said bars, and camlevers arranged to coact with the clamp member to actuate the same.

2. In a tool of the class described, the combination o'l" a holder embodying spaced longitudinal bars, members connecting said bars,

. a clamp member arranged between the longitudina bars of the holder and mounted upon the members connecting said bars, levers pivoted to a side of the holder, and cams extended from said levers to engage between the clamp member and a side of the holder for actuating said clamp member.

3. In atool ofthe class described, the coinbination of a holder embodying spaced longitudinal bars, a loop extension at one end of the holder, a clamp member mounted between the longitudinal bars of the holder, and a plurality oi' cam-levers mounted upon the holder and arranged to coact with the clamp member.

4. In a tool of the class described, the com bination of a holder consisting of spaced longi tudi nal bars, members connecting said bars at intervals between the ends thereof, a clarnp-bar extending longitudinally7 between the bars of the holders and provided with openings through which the members connecting the bars of the holder pass, levers having one end bifurcated, one of the bifurcated portions oi each lever being pivotally attached to the side of the holder, the other bifurcated portion being formed into a cam extension.

In testimony whereof I aihx my signature in presence of two witnesses.

CONRAD FICHTNER. [L s] Witnesses:

W. L. NUEssLE, J. E. DAVIS. 

